If one watches the entire "Fly Fishing 101" segment of the video, nymphs are mentioned numerous times and not in a derogatory sense. It is simply stated that all the fish caught on the video were on dry flies. I think this was the right approach for the purpose of this particular production. If someone can successfully introduce a child or grandchild to fishing challenging park waters with an invisible nymph (bobbers are not a good idea) versus a bright looking, nicely dressed dry, I'd like to know how. After all, how many video gamemakers choose tiny, drab colored creatures clinging to a streambed as the superhero? Instead a number of the characters (both the good- and the bad guys) are endowed with gravity defying abilities and more.